ABSTRACT
Weed control is considered one of the major problems associated with conservation tillage systems. Conservation tillage involves tillage practices that leave part or all of the crop residue on the soil surface to reduce the potential for water and wind erosion. Conservation tillage practices often include the use of a chisel plow or other primary tillage tools, other than a moldboard plow. As with other conservation tillage practices, it is best to apply herbicides at a rate near the higher end of the rate range. Low surface soil pH, although it can drastically reduce weed control, can be easily corrected by the addition of lime when needed. Effective weed control involves not only good weed control practices but optimum crop production practices as well. Weed control strategies should be developed to provide consistent control in high residue situations. Weed control should be maintained each year to avoid weed seed production and surface pH should be monitored closely.
